Callbox

We are Callbox, a Singapore-headquartered B2B lead generation and appointment-setting agency with over 20 years of Asia-Pacific experience. We blend human expertise with AI-enhanced tools to help businesses expand, generate qualified leads, and secure meetings with decision-makers through a multi-touch, multi-channel approach.

Our key services include:

• Lead generation and outbound telemarketing
• Appointment setting and webinar promotion
• Event-based marketing and cross-border campaigns
• Data profiling, enrichment, and sales intelligence

Achievements:

• Recognized as a top lead generation, appointment‑setting, and sales outsourcing provider in Clutch’s 2025 rankings 
• Named among Singapore’s top lead-gen experts by BestLah 

With a client-first ethos, proprietary Smart Engage platform, and fast response, we help SMEs and enterprises grow sustainably.